Accredit, v. t. [imp. & p. p. Accredited; p. pr. & vb. n. Accrediting.] — Webster enters it under “accredit”
Etymology: [F. accréditer; à (L. ad) + crédit credit. See Credit.]
1. To put or bring into credit; to invest with credit or authority; to sanction. His censure will . . . accredit his praises. Cowper. These reasons . . . which accredit and fortify mine opinion. Shelton.
2. To send with letters credential, as an ambassador, envoy, or diplomatic agent; to authorize, as a messenger or delegate. Beton . . . was accredited to the Court of France. Froude.
3. To believe; to credit; to put trust in. The version of early Roman history which was accredited in the fifth century. Sir G. C. Lewis. He accredited and repeated stories of apparitions and witchcraft. Southey.
4. To credit; to vouch for or consider (some one) as doing something, or (something) as belonging to some one. To accredit (one) with (something), to attribute something to him; as, Mr. Clay was accredited with these views; they accredit him with a wise saying.
Shades of meaning
Fernald has no entry of its own for accredited; he lists it under authentic.
He lists it without comment; the entries above explain its neighbors.